York YCUL0020, Installation, Operation And Maintenance Manual

Page: 120 / 178

JOHNSON CONTROLS
120
Form 150.63-NM9
Issue date: 5/20/2021
SECTION 7 – UNIT CONTROLS
Table 12 - Operation Data
* Block of information repeats for each system
Oper Data Key
** Discharge Air Temperature
Ambient Air Temperature
System 1 Discharge & Suction Pressure
System 2 Discharge & Suction Pressure
*System X Accumulated Hours
*System X Accumulated Starts
Load and Unload Timers
Temp Rate & Temp Error
(Leaving Chilled Liquid Control Only)
Lead System Indicator
Evaporator Pump Contacts
Active Remote Control
Current Feedback One Per Unit
*System X Compressors Status
*System X Run Time
Sys X LLSV & HGSV Status
*System X Condenser Fan Stage
Current Feedback One Per System
** Only displayed when Control Mode is programmed for Discharge
Air Temperature Control.
ObeforeData quick reference list
The following table is a quick reference list for infor-
mation available under the OBeforeDATA key.
LD13347
Print key
The PRINT key allows the operator to obtain a printout
of real-time system operating data or a history printout
of system data at the “instant of the fault” on the last six
faults which occurred on the unit. An optional printer is
required for the printout.
Operating data printout
Pressing the PRINT key and then OBeforeDATA key
allows the operator to obtain a printout of current sys-
tem operating parameters. When the OBeforeDATA
key is pressed, a snapshot will be taken of system op-
erating conditions and panel programming selections.
This data will be temporarily stored in memory and
transmission of this data will begin to the printer. A
sample Operating Data printout is shown below. (Note:
Not all values are printed for all models.)
YORK INTERNATIONAL CORPORATION
MILLENNIUM CONDNESING UNIT
UNIT STATUS
2:04PM 01 JULY 09
SYS 1 NO COOLING LOAD
SYS 2 COMPRESSORS RUNNING 2
OPTIONS
AMBIENT CONTROL STANDARD
LOCAL/REMOTE MODE REMOTE
CONTROL MODE LEAVING LIQUID
LEAD/LAG CONTROL AUTOMATIC
FAN CONTROL AMB & DSCH PRESS
CURRENT FEEDBACK NONE
SOFT START ENABLED
EXPANSION VALVE THERMOSTATIC
PROGRAM VALUES
DSCH PRESS CUTOUT 395 PSIG
SUCT PRESS CUTOUT 44 PSIG
LOW AMBIENT CUTOUT 25.0 DEGF
ANTI RECYCLE TIME 600 SECS
FAN CONTROL ON PRESS 240 PSIG
FAN DIFF OFF PRESS 80 PSIG
NUMBER OF COMPRESSORS 6
NUMBER OF FANS BeforeSYSTEM
4
UNIT TRIP VOLTS 3.0
REFRIGERANT TYPE R-410A
REMOTE UNIT ID PROGRAMMED 1
UNIT DATA
DISCHARGE AIR TEMP 67.0 DEGF
COOLING RANGE 65.0 +/- 5.0 DEGF
AMBIENT AIR TEMP 74.8 DEGF
LEAD SYSTEM SYS 2
EVAPORATOR PUMP ON
EVAPORATOR HEATER OFF
ACTIVE REMOTE CONTROL NONE
UNIT XXX.X AMPS X.X VOLTS
SOFTWARE VERSION C.M08.14.02